patch03   
patch03   rayshade - A raytracing package for UNIX, Patch03
patch04   patch #3, continued
patch04   rayshade - A raytracing package for UNIX, Patch04
patch05   patch #3, continued
patch05   rayshade - A raytracing package for UNIX, Patch05
patch06   rayshade - A raytracing package for UNIX, Patch06